Hey, GonoszTopi, I went ahead and reviewed most of the .po (and fixed the two fuzzies). It actually happened that the file had very little uniformity so I tried to fix as many typos as I could, and unify it to a modern grammar.

The string file is quite big and I'm not sure if I'll finish it before the release, so I'm sending you what I have right now.

Thank you very much for your hard work, committed. Either a pull request or posting the updated file here is fine for me, the only difference is that in the former case you'll be marked as a contributor in the commit history too, not only in the commit message.

Could you please sometime take a look at the Spanish manpages translations too?